Capital City Improv will be performing at 7:30 p.m., Saturday, April 30, at Johnson Hall in Gardiner. Seats are $16 for adults, $14 for seniors and $5 for youths under 17. Tickets are available at Johnson Hall’s Box Office from noon to 3 p.m., Monday through Wednesday and Friday, or call 207-582-7144 or go to: www.johnsonhall.org. This improvisational comedy troupe uses audience suggestions to create a completely customized comedy show. Joining creator Dennis Price will be Jen Shepherd, Lizz Mathews and Marcia Gallagher on piano.